Harry, 19, who is regularly linked to different celeb babes, has seen his love life become a regular fixture in gossip magazines.

He and his four bandmates were given the guidance during hour-long phone calls from execs and marketing experts.

They were told to inform management when romances start so non-disclosure agreements can be drawn up. A label source said: “The Zayn scandal wasn’t the kind of attention bosses want for the band. It doesn’t matter if it’s true or not, it still chips away at their squeaky-clean image.”

nThe showdown talks also saw the boys advised on money issues because bosses fear the lads could squander their multi-million pound fortunes.

Only Louis Tomlinson, 21, and Niall Horan, 19, are said to have accepted help from professional accountants.

Our source added: “Harry has already splashed out on a string of luxury cars and fancy gifts for friends and staff.

“Management are worried he will spend the lot if he’s not careful. He’s definitely the biggest spender in the group.

“They were all told that investing in property would be a wise move.”

During the chats, the five-piece, which also includes Liam Payne, 19, discussed possible lucrative endorsements.

Offers to front soft drink and beauty product campaigns are said to be on the table.

An industry expert said: “One Direction charge a minimum of £7.5million to become the face of a product.

“They’ve got millions of fans and they’re the biggest group in the world so they can pretty much name their price.”